03_Asymp and Distr

What command would you use to visually inspect one continuous variable in Stata?

• histogram

• sum

• scatter plot

• tab

How many parameters does Chi-squared distribution have?

• 1

• 2

• 3

• 4

What command would you use to generate a normally distributed variable with mean 2 and variance 9?

• rnormal(3, 1)

• rnormal(2, 3)

• normal(2, 3)

• rnormal(2, 9)

Which distribution has a bell shape?

• Uniform (3,5)

• Chi-squared (1)

• Normal (5, 1)

• None of the above

You are estimating 400 subsamples from a random variable x which is uniformly distributed between 3 and 5. What could you tell about sampling distribution of the mean?

• It is impossible to predict.

• It will be chi-squared distributed with mean 3.

• It will be uniformly distributed with mean 4.

• It will be normally distributed with mean 4.

In the previous question, you based your answer on:

• On the central limit theorem.

• On the law of large numbers.

• On the variance of x.

• On intuition.